You shouldn't have a problem with this. If you intend to install Project
2010, make sure that you choose to install 2010 in addition to 2003 (not a
replace or upgrade), and that you install 2003 first, before you install the
Office 2010 applications as well.
It sounds great.
Do you mean both Project Pro 2003 and Project Web Access 2003 (SP3)? I
wonder if PWA Client 2003 (SP3) is compatible with IE8 on Windows7.